Remove/Install Drive For Header Bow - AR77.33-P-1040RGR

Model 190.4 

Fig 1: Drive For Header Bow Components Location - Model 190.4

Courtesy of MERCEDES-BENZ USA

	Risk of injury.  Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on preventing damage to electronic components due to a magnetic tool		AH54.00-P-0002-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove SAM control unit with fuse and relay module in rear and place to one side with connected electric lines	It must be ensured that electric lines are not stretched or kinked. In order to prevent damage.	AR54.21-P-1271RGR
2	Remove left and/or right roll bar		AR91.50-P-2000RGR
3.1	Remove HERMES control unit with bracket and place to one side with connected electric lines	Only when removing left header bow drive (1). Model 190.4 with code 360 (HERMES UMTS) Model 190.4 with code 362 (HERMES communications module LTE) It must be ensured that electric lines are not stretched or kinked. In order to prevent damage.	AR82.95-P-0019RGR
3.2	Remove soft top mechanism control unit with bracket and place to one side with connected electric lines	Only when removing right header bow drive (1). It must be ensured that electric lines are not stretched or kinked. In order to prevent damage.	AR77.39-P-3606RGR
4	Release and disconnect electrical connector (2) on drive for header bow (1)
5	Mark position of rear soft top lock (4) using suitable means
6.1	Remove screw (5) and place left rear soft top lock (4) with connected sensor to one side	Only when removing left header bow drive (1). It must be ensured that electric lines are not stretched or kinked. In order to prevent damage.
		Bolt, rear mount to side drive flap	*BA77.33-P-1001-02D
		Quick-acting adhesive, Loctite 270	*BR00.45-Z-1008-02A
6.2	Remove screw (5) and remove right rear soft top lock (4)	Only when removing right header bow drive (1).
		Bolt, rear mount to side drive flap	*BA77.33-P-1001-02D
		Quick-acting adhesive, Loctite 270	*BR00.45-Z-1008-02A
7	Remove screws (3) on drive for header bow (1)
8	Remove header bow drive (1)
9	Install in the reverse order

MECHANICAL SOFT-TOP COMPONENTS

Number	Designation		Model 190.4
BA77.33-P-1001-02D	Bolt, rear mount to side drive flap	Nm	25

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1008-02A	Quick-acting adhesive, Loctite 270	A 002 989 93 71